Draft rigging



B. W. KADEL DRAFT RIGGING May 18 1926.

Patented May 18, 1926.

UNITED STATES PATENT OFFICE.

BYERS W. KADEL, OF BALTIMORE, MARYLAND, ASSIGNOR, BY ME SNE ASSIGNMENTS,

DRAFT RIGGING.

Application led December 15, 1921. Serial No. 522,576.

The invention relates to draft rigging for railway cars and moreparticularly to a4 rear draftcasting and combined center filler brace.

The principal object of the invention is to provide in a singlestructure a body bolster center casting and rear draft lugs.

Another object of the invention isto provide in this construct-ion meansfor suitably supporting the truck center plate.

p A still further object of the invention is to provide a casting of thecharacter described Wherein the metal is arranged so as to give themaximum strength value for the minimum expenditure of material and toarrange the various elements of the casing so as to cause them to reactto best advan- 'tage to the variety of forces to which they may besubjected from the several different functions imposed upon a singleintegral casting.

A still further object of the invention is to provide a casting in sucha form as to render the necessary parts of it accessible to inspectionand to so construct the casting as lto admit of the ready driving of thenecessary attaching rivets.

A still further object of the invention is to so arrange the variousstructural elements of the casting as to make the same easy to mold andto avoid excess foundry loss by the elimination from the casting ofshrinkage, cracks, checks, and other common causes of loss which areexperienced in casting large metal objects when due cpnsideration is notgiven to the combination p of thin and thick metallic sections.

Various other objects and features of the invention are hereinafterbrought out in a more detailed description of the particularmodification of my invention which has been chosen for the purpose ofillus tration.

In the drawings:

Figure 1 is a view partially 1n plan and partially in longitudinalsection, of a combined stop center brace and center bearing embodying myinvention, the sectlon being taken on line 1 1 of Figure 2. In dottedlines have lllustrated the position of the yokeof the draft rigging whenin normal positlon.

Figure 2 is a longitudinal vertical section on line 2 2 of Figure 1, thedirection of view being indicated by arrows at the ends of the sectionline.

Figure 3 is a rear end view partially in elevation and partially insection, the sectlon being taken on line 3-3 of Figure 2.

Figure 4 is a view in front elevation partially in plan and partiallylin section, the section being taken on line 4-4 of Figure 2, adjacentportions of the car being shown in dotted lines. f

Throughout the specification and drawings like parts are designated bylike reference characters.

In the preferred embodiment of the in vention here illustrated, the.casting 1 is provided with side walls 2 which are adapted to contact andpreferably conform to the inner faces of the draft or center sills 3which are illustrated in dotted lines in Figure 4. The center sills 3are preferably connected by a top cover plate 4 to form the usual boxcenter sill construction. The sills 3 arealso preferably provided withinturned bottom fianges 5 so that in effect the lower portions of thesills are in the form of an I-beam and the upper portion of the sills inthe form of the or inary rolled channel. The casting 1 is arranged tobridge between the sills 3 and to deliver all of the buing forcesthereto.

The casting 1 is provided with a bottom Hoor 6 which is approximately inline with the bottom edge of the side walls 2 except at the intermediateportion designated as 7 Where the floor is dlverted from its normalplane to conformto the upper surface of the nturned flanges 5 of thecenter sills. The side walls 2 are connected in line with the bodybolster 8, illustrated in dotted lines in Figure 4, by means of atransversely arranged upright wall or web 9, and formed on the upperportion of the wall or web 9 is a transversely extending fiange 10. Thisconstruction forms a beam across the center sill member so that when thecar body rocks and the load is concentrated at one edge of the nterplate 10, also illustrated in dotted lines in Figure 4, the casting willhave sufficient beam strength to resist the forces to which it is underthese conditions subjected. The thimble 11 which is adapted to receivethe king bolt (not shown) 1s provided at the top with a closed wall 12and is formed preferably in the transversely extending upright wall 9.The body bolster 8 is secured to the center sills in line with thedownwardly extending intermediate portion 7 of the casting 1. The bottomtie member 13 ,of the bolster, which preferably extends directly underthe portion 7 of the casting 1, is clearly indicated in dotted lines inFigure 4.

The portions of the side walls 2 of the casting 1 which are above thedownwardly extending portion 7, are provided with rivetreceivingopenings 14 through which the securing rivets 15 are adapted toextend. Preferably I provide four vertical lines of rivetl openings forthe rivets 15 and these rivets, in addition to connecting the casting 1to the center sills, also form means for connecting the portions of thebolster to the center sills and to the center casting. Additional rivet`receiving openings 17 are provided forward of the rivet openings 15, aswill be hereinafter more fully described.

The side walls 2 of the casting are extended forwardly of the uprightriband are provided with transversely arrangedwalls or inwardlyextending flanges 18 which preferably form stop faces or lugs to engagethe movable element of the draft rigging. In this manner the ordinarydraft lugs are formed as an integral part of the body bolster centercasting 1 The stop faces or flanges 18 are supported by a plurality oflongitudinally extending ribs 19, 20, 21 and 22 which extend from therear faces of the flanges 18 and from the inner faces of the adjacentside walls. It will be observed that the u per rib 19 preferably followsthe line o the upper ed e of the casting and that the casting, as efinedby this rib, is

higher at the forward or draft lug end than at the rear or bolstercenter filler end of the casting. This construction is devised in orderto make the outer rivets 23 more accessible from the rear as it issometimes necessary, in driving these rivets, to reach over thetransversely extending flange 10".

The ribs 19 and 22, it will be observed from Figure 4, are formed byinwardly extending portions of the side walls 2, while the ribs 20 and21 are formed by what may be termed a convolution or inwardly ex-.tending bend in each of the side walls 2. By so constructing the castingI provide in effect, a series of convolutions, the convolutions formedbetween the ribs 19 and 20 and between the ribs 21 and 22 opening fromthe inner face of the casting, while the convolution between the ribs 20and 21'opens from the outer face of the casting. vBy this construction Iprovide reinforcing fianges without increasing the thickness of themetal and provide the side walls with webs of substantially constant anduniform thickness.

The inner portions of the stop lugs 18 are spaced apart suiiciently toaccommodate the rear end of the ordinary vertically arranged draft gearyoke 24, shown in dotted lines in Figure 1. The draft gear engaging face-25 of this yoke is preferably positioned in alinement with the outerfaces of the lugs 18, while the rear end of the yoke is normally,preferably, spaced from a cross wall or transversely extending web 26 ofthe casting, which wall or web defines the length of the yoke receivingpocket. By this construction it will be evident that any yield ingforward due to elongation of the yoke or to bending of the draft riggingparts, would cause the rear end of the yoke to come in contact with thetransversely extending wall 26 which would act to prevent furtherrearward movement.

The transversely extending wall or web 26 is arranged in line with andmay be considered as an extension of the portions 27 of the side walls2. By this construction the entire rear end of the yoke, it will beobserved, is surrounded by a continuous wall of metal. This not onlyforms a substantial bufling arrangement for the yoke when the necessityarises, but also rovides liberal wearing surplus for the si e edges ofthe yoke. In order to further strengthen the inner edges of the lu 18, Ipreferably provide inwardly exten ing vertically arranged flanges 28which connect the ribs 19 and 20 and 21 and 22, respectively. At theirinner` ends the flanges 19 and 22 merge, respectively, into thetransversely extending flange 10a and into the bottom wall or floor ofthe casting, while the intermediate ribs 2O and 21 merge into theupright rib 9 ofthe casting, as will be hereinafter described.

It will be noted that the bottom rib 22 is approximately on a line withthe diverted portion 7 of he floor 6 of the casting. This rib is locatedsomewhat above the lower plane of the floor 6 in order that it may clearthe inturned fiange 5 of the channel draft sills. In other words, thisrib is in effect a continuation of the angularly disposed portion 7 ofthe door 6 and its angular form gives it great rigidity to resist theforces to which it may be subjected.

Spaced from the Hoor portion 6 of the casting 1 and extendingtransversely of the casting, is a second wall or door web 29 whichextends from the crossweb 9 forwardly fo the cross web 26, preferably inline with the ribs 21. The ribs 21 are in reality continuations of thistransverse web 29. The rib 29 is of course adapted to receive forcesfrom the rib 21 and from the transversely extend ing flange 26. This ribhas also an important function in that it forms a gusset to hold theside walls 2 of the casting in alignment in cases Where more load isdelivered to one of the center sills than to the other, that is itprovides means for preventing relative movement beween the channel draftor center sills.

Adjacent the upper edge of vthe flange or web 26 I provide a rearwardlextending flange 30 which is adapted to rther reinforce the said flange26.

A vertic'al web 31 preferabl extends longitudinally of the casting anapproximately on the center line thereof and serves to support the floor6 and to brace this floor and tie the same to the upright transverselyextending web 9. I preferably extend this web both vabove and below thetransversely extending horizontally disposed web 29 and also extend thesame forwardly so as to intersect the wall or web 26 and the flange 30thereof. It will be thus apparent that this vertically extending webthus forms a sturdy resisting medium to any forces which may at times bedelivered to the transversely extending Web 26 by means of the yokemember 24.`

While the convolute form of casting may be advanta eously employedthroughout the entire lengt thereof if desired, I dpreferably arrangethe convolute portion a jacent the forward end only so as to notinterfere with the center line of the bolster connecting rivets. Itherefore provide at an intermediate point between the lugs 18 and thetransverse upright web 9, a return bend 31, as clearly shown in fulllines in Fi re 1, whereby the side walls 2 of the casting are returnedat their central portions to the plane of the upper and lower portions,and in order to reinforce the convolute portions formed between the ribs20 and 21, I provide further ribs 32 preferably in alinement with theportions 27 of the web, the ribs 32 extending from the web 26 totheupright web-9, as will clearly be seen from Figures 1 and 3.

The arrangement of the various walls, ribs and other members of thecasting, as shown on the drawings and hereinbefore described,constitutes Aa most effective means for receiving the variety of forcesto which a combined casting is subjected.

All of the parts of the casting as formed, are readily accessible -bothfor inspection and to permit the application of the .casting to the carunderframe, and the junctures of the various portions are arranged so asto eliminate to a large extent if not entirely, all shrinkage, cracks,chec and other defects incident to the manufacture of such a casting.The casting is of maximum strength for the amount of metal used and itwill be seen that the casting is so devised as to distribute throughoutthe same, all loads, strains or forces to which the various elementsthereof. are subjected in use.

Stop lugs are frequently subjected to column loads of a more or lesseccentric nature due to the action of the draft rigging so that there,is oftenx a tendency for these lugs to bend away from the sills. Thatis, the lugs are often subjectedv to loadsat an angle to their facesrather than at right angles thereto, with consequent bending.

stress applied to the lugs and to the car sills. By forming them in thepeculiar manner herein shown and described, they are adapted to resistall such actions and are greatly strengthened against bending stressesso applied.

Having thus described my invention,'what I claim is with spaced verticalside walls and a. floor connecting the same near their lower edges, avertically arranged web joining the Iside Walls over the said floorportions of the casting, the side walls being extended toward the frontof the castin to form continuous draft gear stops, the sai extensionsbeing of open ox shape in cross section, the intermediate portions ofeach of said stops being connectcd by a Alongitudinally extendingupright flange.

2. In combination with a center sill formed of a pair of spaced channelmembers with inturned bottom flanges, a bolster center filler having saced side walls arranged to t between t e webs of the center sillchannels, a horizontally arranged floor member connecting the said sidewalls near their bottom edges, the said floor member being diverted nearits junction point with the side walls from its normal horizontalv planeto conform to the contour of the said inturned flanges of the centersill channels, draft lugs formed at the front end of the said casting,the same having horizontally arranged ribs near vtheir lower edges, saidribs constituting extensions to the said diverted portions of the licormember.

3. In combination with a center sill formed of a pair of spaced channelmembers with inturned bottom flanges, a bolster center filler having saced sidewalls arranged to lit between e webs of the center sillchannels, a horizontally arranged floor member connecting the said sidewalls with the bottom face thereof on line with the bottom of the centersill channels, the side walls of the castings being extended forwardlyto form draft gear stops, the said Hooi' member having forwardextensions above the general plane of said floor, the same beingattached to and forming stifening ribs 'for the draft gear stop members.

4. A bod bolster center casting formed with spacedy vertical side wallsand a floor connecting the same near their lower edges, a verticallyarranged web joining the side walls over the said Hoor portions of thecasting, the side walls being extended toward the front of the castingto form draft gear stops, a flange formed along the top edge of the saidweb` the said flange being extended forwardly along the side walls toform stiffening ribs for the draft gear stops.

5. A body bolster center casting formed with spaced vertical side wallsand ay floor connecting the same near their lower edges, al verticallyarranged web joining the side walls over the said floor portions of thecasting, the side walls being extended toward the front of the castingto form a draft gear stops, a flange formed along the top edge of thesaid web, the said liange being extended forwardly along the upper edgeof the side walls to form stiifening ribs for the tops of the draft gearstops.

6. A body bolster center filler with forwardly extending portions spacedfrom each other and formed as draft lugs, the said draft lug portionshaving transversely arranged stop faces with a plurality of horizontallyarranged ribs secured to the rear faces thereof, and vertically arrangedwalls connecting the edges of some of the adjacent ribs, some of thesaid vertical walls being disposed at the inner edges of the ribs andsome at the outer edges thereof.

7 In combination with a. center sill formed of a pair of spaced channelmembers, a bolster center filler having spaced side walls arranged tofit between the webs of the center sill channels, a horizontallyarranged floor member connecting the said side walls near their bottomedges, draft lugs formed at the front ends of the said casting, the samehaving horizontally arranged ribs near their lower edges, said ribsconstituting extensions from the said ioor member.

8. A body bolster center casting having spaced parallel side walls, saidside walls having at their front ends transversely arranged wallsextending inwardly from the side walls toward each other and adapted toform draft gear stops adapted to present uninterrupted faces forco-action with the rear follower of the draft rigging, horizontallyarranged ribs joining the rear face of each of the said stop walls withthe inner face of the adjacent side wall, the. side walls being omittedbetween some of said ribs and there being a vertical wall of metalarranged to connect these ribs at their inner edges.

9. A body bolster center casting having spaced parallel side walls, saidside walls having, at their front ends, transversely arranged wallsextending inwardly from the side walls toward each other and adapted toform draft gear stops, there being an open space between the said draftgear stops suitable for the reception of the rear end of an ordinarydraft gear yoke, a flan ed cross member uniting the side Walls,horizontally arranged ribs joining the rear faces of each of the saidstop walls with the flanged cross member, the flange on said crossmember being arranged in alinement with the said horizontally disposedribs and joined to the innermost portion of the respective side walls.

10. A body bolster center filler having spaced parallel side walls, theforwardly extending portions thereon being formed as draft lugs, thetransversely arranged por tions of said lugs being adapted to form afollower stop, horizontally arranged ribs connected to the rear faces ofsaid draft lugs, the said side walls being extended to form webs joiningthe outer edges of some of the ribs, there being vertically arrangedwalls joining the inner edges of other of the ribs, and a secondvertically arranged wall connecting said first named vertical walls andextended across the casting at the rear of the draft lug portions toform a transverse tie therebetween.

11. A body bolster center casting formed with spaced vertical side wallsand a floor connecting the same near their lower edges, a second floorconnecting the said side walls at points immediately above the bottomfloor member, continuous draft lugs formed on the forward end of thesaid casting, the same having transversely arranged stop faces withhorizontally arranged ribs attached to the rear thereof, some of saidribs coincidin with and forming extensions of the sai second floormember.

12. A body bolster center casting formed with spaced side walls, and atransverse connecting Hoor, the said casting having draft lugs at itsforward end, the same being formed with transversely arranged stopfaces, horizontally arranged ribs extendlng from the rear of the stopfaces toward the rear end of the casting, the said side walls beingcarried forwardly to the front end of the draft lugs, and connecting theedges of the said horizontally arranged ribs, the said side walls beingdiverted out of their normal planes between some of the ribs, andarranged to connect sai l ribs at their innermost edges, the remainderof said ribs being joined by the said side walls at their outermostedges.

13. A body bolster center casting formed with draft lugs at its forwardend, said draft lugs having a yokeaeceiving space between theirinnermost faces, continuous transversely arranged walls formed on thefront end v ef the draft lugs, and adapted to form draft gear seats,intermeidiate portions:l ef said face yof the adjacent side Wall, ahorizontal Hoor member joining the said parallel walls near their bottomedge, a second horizontal ioor extendin between the side walls above thefirst mentioned fioor, the plane of the said second floor coincidingwith the plane of one set ofthe ribs, the said ribs forming extensionsfrom the said floor, there bein a vertical wall of metal joining theseribs with the next adjacent ribs, said vertical wall being extendedacross the casting on line with the front edge of the said second licor,and to the rear of the said draft gear stops.

15. A bod bolster center casting having spaced parallel side walls, saidside walls having at their front ends transversely arranged walls,extending inwardly toward each other and adapted to form draft gearStops, horizontally arranged ribs joining the rear face of each of thesaid stop walls with the inner face of the adjacent side wall, ahorizontal ioor member joining the said parallel walls near their bottomedge, .a lsecond horizontal "floor extending between the side wallsabove the first mentioned floor, the plane 'of the said second ioor.coinciding with the plane of one setof the ribs, the said ribs formingextensions from the said floor, there being a vertical wall of metaljoining these ribs with the next adjacent ribs, said vertical wall beingextended across the casting on line with the front edge of the saidsecond floor, and to the rearfof the said draft gear stops, and ahorizontally arran ed ange at the upper extremity of the said verticalwall, the plane of the said iange coinciding with the other set of ribs,and forming a continuous hori-Y zontal bar of metal therewith.

16. A body, bolster center casting having spaced parallel side walls.formed with convolutions, portions of which extend 1nwardly toward eachother and other portions of which provide draft gear stops there beinganopen space between the sai draft gear stops suitable for the receptionof the rear end of an ordinary draft'gear yoke, a transverse wall ofmetal connecting the said draft gear stops at the rear of the said yokespace, said wall of metal being arranged in a transverse vertical lane,there being a vertically arran ed wal extending rearwardly from saitransverse wall immediately back of the yoke space, said wall beingarranged in a vertically lon 'tudinal plane. 1 A body bolster centercasting having spaced parallel side walls, said side walls ha at theirfront ends transversely arranged walls extending inwardl and toward eachother and adapted to orm draft gear stops, there being an open spacebetween the said draft gear stops suitable for the reception of the rearend of an ordinary draft gear yoke, a transverse wall of metalconnecting the said draft gear stops at the rear of t e said yoke space,said walL of metal being arranged in a transverse vertical plane, therebeing a vertically arranged wall extending rearwardly from saidtransverse wall immediately back of the yoke space, said wall beingarranged in a vertically lon 'tudinal plane, and being extended bac tothe said center plate floor andv arranged to form a support therefor.

sesv

18. A body bolster center casting having i spacedtparallel side walls,said side walls having at their front ends transversely arranged wallsextending inwardly from the side walls toward each other, and adapted toform draft gear stops, a horizontally arranged reinforcing ribconnecting the rear face of each of the said stop walls with the innerface of the adjacent side wall, and

upright webs extending rearwardly from;

the adjacent faces of said stop walls for reinforcing the latter.

19, A combined back stop and tie casting involvin spaced side walls,each of said side wa being provided for a portion of its length with aconvoluted web, stop flanges formed on said side walls at the forwardend of each convoluted web, and a cross member uniting the inwardlyextending portions of they convoluted webs.

20. A combined back stop and tie casting involving spaced side wallseach of which is formed with a plurality of inwardly extendin'longitudinally disposed flanges, vertically disposed flanges provided onsaid side walls and adapted to form draft gear stops, a plurality ofhorizontall disposed anges united with said vertical ianges andvarranged between the inwardly extending anges of the side walls, and across member for connecting the said last named horizontally arrangedflanges, portions of said cross member extending forwardly and formingupright flanges connecting said last named horizontally disposedlianges.

21. A combined back stop and tie casting having a plurality of s aced`side walls, portions of which are ormed with convolutions, stop iangesformed on said side walls adjacent one end of said convolutions, saidflanges being reinforced thereby, and means including a cross memberuniting the inwardly extending portions of said con- Volutions at apoint in the rear of said stop ianges, said cross member being formedwith a fiange arranged in alinement with the inwardly extendingconvoluions of the side Walls.

22. A combined back stop and tie cast-ing having a plurality 0f spacedside Walls, stop flanges formed on said side Walls, means forreinforcing Jche said flanges, said means coniprising a plurality ofinwardly extending flanges formed on each of said side Walls, and meansfor connecting same to said last named flanges, said means beingarranged in alinemenfJ with the respective inner edges of said firstnamed flanges.

In testimony whereof' I affix my signature.

,BY-ERS W. KADEL.

